软件定义传送网标准化发展探讨与思考

[摘要] 软件定义传送网(SDTN)的国际标准化工作，呈现以ONF主导，多种技术标准组织竞争发展的趋势。在SDTN的南向接口方面，开放网络基金会(ONF)的OpenFlow与国际互联网工程任务组(IETF)的路径计算单元协议（PCEP）将存在路线之争；而北向接口和信息模型，将成为各标准组织后续争夺的焦点。认为中国应加大光网络软件定义网络（SDN）领域标准的研究和推动力度，在国际标准中发挥引领作用。

[关键词] SDN; SDTN; OpenFlow; 应用程序接口（API）

[Abstract] The trend in the international standardization of software-defined transport networks (SDTNs) is that the Open Network Foundation (ONF) is the leading organization, and other technology organizations keep the competitive relationship and develop together. OpenFlow of ONF and path computation element protocol (PCEP) of Internet Engineering Task Force (IETF) are the most important protocols for southbound interface of SDTNs. The northbound interface and information model will become the focus of subsequent competition for organizations. We propose that China should pay more attention to the standardization of software-defined networks and play a leading role in international standardization originations.

[Keywords] software-defined network (SDN); SDTN; OpenFlow; application programming interface (API)